User`s manual

CyberResearch
®
Motherboards MXGG Series
Figure 4-9: Clear BIOS Jumper Location
4.4.3 COM 2 Function Select Jumper
Jumper Label: JP4
Jumper Type:
6-pin header
Jumper Settings:
See
Table 4-4
Jumper Location:
See
Figure 4-10
The COM 2 Function Select jumper sets the communication protocol used by the second
serial communications port (COM 2) as RS-232, RS-422 or RS-485. The COM 2 Function
Select settings are shown in
Table 4-4.
Setting Description
Short 1-2 RS-232 (Default)
Short 3-4 RS-422
Short 5-6 RS-485
Table 4-4: COM 2 Function Select Jumper Settings
Figure 4-10: COM 2 Function Select Jumper Location
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